Braneworld black hole gravitational lens: Strong field limit analysis

TL;DR

This paper analyzes the gravitational lensing effects of braneworld black holes in the strong field limit, comparing them with Schwarzschild black holes and discussing observational prospects.

Contribution

It introduces a unified strong field lensing analysis for braneworld black holes and compares results with standard Schwarzschild black holes.

Findings

Relativistic image positions and magnifications are calculated for braneworld black holes.

Comparison shows differences in lensing features between braneworld and Schwarzschild black holes.

Discussion on the observability of strong field images in astrophysical contexts.

Abstract

In this paper, a braneworld black hole is studied as a gravitational lens, using the strong field limit to obtain the positions and magnifications of the relativistic images. Standard lensing and retrolensing situations are analyzed in a unified setting, and the results are compared with those corresponding to the Schwarschild black hole lens. The possibility of observing the strong field images is discussed.